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This automatic weighing dosing machine is customized for rigid and soft PVC extruder lines. It completely replaces manual chemical additive weighing to eliminate human operation error. It can automatically weigh 5 to 12 kinds of powder and granular additives like stearic acid and wax. Adopting imported famous brand components, it features ±5g high control accuracy, closed dust-free screw feeding, intelligent speed adjustment and low power consumption, improving batching efficiency and keeping production workshop tidy.
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This PVC chemical additives automatic weighing dosing machine is specially developed to upgrade traditional manual batching mode for rigid and soft PVC full-range extrusion production. Traditional manual additive weighing has obvious drawbacks including frequent weighing error, low batching efficiency, heavy labor workload, high long-term labor cost and chemical powder dust harm to workers. This intelligent dosing system can automatically finish fixed-quantity batching for one-batch production materials, covering common PVC extrusion additives: stearic acid, wax, titanium dioxide, whitener, carbon black and other powder and granular auxiliary materials.
It supports flexible bin collocation from 3 minimum bins to 12 maximum bins, matching 5-12 kinds additive automatic weighing demands. Equipped with Swiss Mettler Toledo weighing sensor and German Siemens whole-set electric control parts, the machine realizes dual precision guarantee: single bin weighing error about 10g, total batch error within 10g, and advanced control accuracy up to ±5g. Adopting fully closed screw feeding structure, it achieves full dust-free workshop operation. The integrated split silo design supports pre-wired factory delivery, easy on-site installation and parameter setting operation, which is ideal matching equipment for medium and large PVC extrusion factories.
8. Energy-saving Dust-free Design: Closed screw feeding avoids powder floating pollution; installed power 1.5kw, actual running power less than 3kw, effectively reducing factory daily power consumption.
| Parameter Item | Specific Technical Data |
| Single bin weighing error | Around 10g per bin |
| Total batch weighing error | Within 10g |
| High-precision control accuracy | ±5g |
| Conventional weighing efficiency | 15kg/120s |
| Standard weighing speed | 20kg/120s |
| Feeding mode | Closed screw automatic feeding |
| Single feeding motor power | 1.5kw |
| Optional feeding motor quantity | 1-10 sets |
| Speed adjustment mode | Intelligent inverter automatic adjustment |
| Stirring motor specification | 200w*2 sets |
| Total installed power | 1.5kw |
| Actual running power | Less than 3kw |
| Optional silo quantity range | Min 3 sets, Max 12 sets |
| Single hopper volume | 150L, load 70kg additives |
| Hopper raw material | Full SUS304 stainless steel |
| Overall dimension(L*W*H) | 3400*2400*1100mm |
3. Bin material: Anti-corrosion SUS304 stainless steel
2. Weighing module: Imported stable weighing module from Germany Siemens
4. Contactor: German Siemens or Schneider optional brand
Q1: What kinds of production lines is this dosing machine suitable for?
A1: It is professionally designed for rigid PVC and soft PVC full-series extrusion production lines, applicable for PVC pipe, profile, sheet and floor extrusion batching work.
A2: It can weigh 5-12 kinds of powder and granular PVC additives, including stearic acid, wax, titanium dioxide, whitener, carbon black and other common auxiliary materials.
A3: The total batch weighing error is within 10g, and the advanced program control accuracy reaches ±5g, which meets high-standard PVC formula production requirements.
A4: Yes. The minimum matched bin number is 3 sets, the maximum expandable bin number is 12 sets, users can match bins according to additive quantity.
A5: No. It adopts fully closed screw pipeline feeding structure, all chemical additives are transported in sealed space, realizing 100% dust-free workshop production.
A6: Not required. Equipped with icon Siemens touch screen, workers only set formula parameters directly, no background program modification needed.
A7: All international brand electric components are equipped with CE and UL global safety certification, compliant with European and American factory use standards.
